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Hydroxylherderite (Ca₂Be₂P₂O₈(OH)₂) stability under extreme conditions (up to 750°C/100 GPa)

Title data

Gorelova, Liudmila ; Vereshchagin, Oleg ; Aslandukov, Andrii ; Aslandukova, Alena ; Spiridonova, Dar'ya ; Krzhizhanovskaya, Maria ; Kasatkin, Anatoly ; Dubrovinsky, Leonid:
Hydroxylherderite (Ca₂Be₂P₂O₈(OH)₂) stability under extreme conditions (up to 750°C/100 GPa).
In: Journal of the American Ceramic Society. Vol. 106 (2023) Issue 4 . - pp. 2622-2634.
ISSN 1551-2916
DOI: https://doi.org/10.1111/jace.18923

Official URL: Volltext

Abstract in another language

Hydroxylherderite, Ca2Be2P2O8(OH)2, is among the most common beryllophosphates in nature and could play a substantial role in Be geochemical cycle. Hydroxylherderite P–T stability and crystal structure behavior were studied under extreme conditions (up to 750°C/100 GPa) using in situ single-crystal and powder X-ray diffraction and Raman spectroscopy. The mineral demonstrated high stability under high-pressure conditions (up to ∼100 GPa) without any phase transitions. Under high-temperature conditions, it was stable up to about 700°C, when it decomposed with the formation of fluorapatite Ca5(PO4)3F and hurlbutite CaBe2P2O8. The beryllophosphate member of the gadolinite supergroup is the most stable mineral (material) under high-pressure conditions, compared to aluminum-, boro- and beryllosilicates.

Further data

Item Type: Article in a journal
Refereed: Yes
Keywords: crystal structure; gadolinite; herderite; high-pressure; high-temperature; hydroxylherderite
Institutions of the University: Faculties > Faculty of Mathematics, Physics und Computer Science > Group Material Sciences > Chair Crystallography
Faculties > Faculty of Mathematics, Physics und Computer Science > Group Material Sciences > Professor Materials Physics and Technology at Extreme Conditions
Faculties > Faculty of Mathematics, Physics und Computer Science > Group Material Sciences > Professor Materials Physics and Technology at Extreme Conditions > Professor Materials Physics and Technology at Extreme Conditions - Univ.-Prof. Dr. Natalia Doubrovinckaia
Research Institutions
Research Institutions > Central research institutes
Research Institutions > Central research institutes > Bavarian Research Institute of Experimental Geochemistry and Geophysics - BGI
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 530 Physics
500 Science > 550 Earth sciences, geology
Date Deposited: 09 May 2023 07:32
Last Modified: 13 Feb 2024 07:27
URI: https://eref.uni-bayreuth.de/id/eprint/76221